Yes you bloody do they're fantastic animals!!! The other week in my father's messy house I found the most beautiful instrument ever!!!It took me a bit of wondering before discovering it was a mandoloncello(lower than a mandolin),and now I'm saving all my money to get it fixed.Even if I still have that "where is the mouthpiece to blow?" need(woodwind player...)and don't have a clue of how.I think they're unique instruments,so Renaissance like and so narrative with their squeaky linear sound